Crossword Puzzle: Desert Rocks, Gems & Minerals
Directions: Fill in the spaces using the clues given below. When you're finished this puzzle, click here to find out more about the desert's rocks, gems & minerals.
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Clues
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Across
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| 2. | this semiprecious silica mineral found in ancient lava has a glassy luster and ringed pattern; onyx is one variety |
| 4. | this most abundant mineral in the Earth's crust is very resistant to weathering; used in sandpaper, polishing powders, porcelain, glass, and watches |
| 7. | this transparent, purple variety of quartz is a very popular gemstone used in making jewelry |
| 9. | this dense, shiny, deep yellow precious metal has been valuable throughout history, both as a medium of exchange and for jewelry |
| 11. | this silicate mineral and valued gemstone is used in jewelry; it can be clear, yellow, orange, red, blue or green |
| 12. | a metal reddish used as a conductor of electricity and heat |
| 13. | these precious stones are a form of non-crystalline quartz with a glassy-like, pearly finish |
| Down | |
| 1. | this green gemstone has been carved into jewelry, ornaments, small sculptures and tools from the earliest recorded times |
| 3. | this abundant mineral comes in a wide range of colors - black is the most common, but colors can vary from clear to pink, yellow, green, blue, violet, brown, and black; the colored varieties are cut as gems |
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a light
green mineral with a streak; polished and carved into ornaments and jewelry
for thousands of years
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| 6. |
a white
mineral, soluble in groundwater, mixed with sand to make mortar
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| 8. |
a brilliant
white, lustrous precious metal used to make coins, ornaments and jewelry
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| 10. |
these
brilliant and sparkly gemstones are the hardest naturally occurring substances
on Earth; they are also the most popular of all gemstones
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>> solution <<
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